55111322 has 8 divisors (see below), whose sum is σ = 94476576. Its totient is φ = 23619132.

The previous prime is 55111321. The next prime is 55111327. The reversal of 55111322 is 22311155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 55111294 and 55111303.

It is not an unprimeable number, because it can be changed into a prime (55111321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968248 + ... + 1968275.

It is an arithmetic number, because the mean of its divisors is an integer number (11809572).

Almost surely, 2^55111322 is an apocalyptic number.

55111322 is a deficient number, since it is larger than the sum of its proper divisors (39365254).

55111322 is a wasteful number, since it uses less digits than its factorization.

55111322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936532.

The product of its digits is 300, while the sum is 20.

The square root of 55111322 is about 7423.7000208791. The cubic root of 55111322 is about 380.5516502990.

Adding to 55111322 its reverse (22311155), we get a palindrome (77422477).

The spelling of 55111322 in words is "fifty-five million, one hundred eleven thousand, three hundred twenty-two".